import java.math.BigDecimal;
import java.util.Scanner;
public class Test {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        //方法1：使用double来做 
        //while(in.hasNext()){
            double n = in.nextDouble();
            double r = in.nextDouble();
            if(n > (2*3.14*r)){
                System.out.println("No");
            }else{
                System.out.println("Yes");
            }
        }//
        //方法2：BigDecimal来做，BigDecimal可以用来算大数（任意精度的十进制数（浮点数））
        while(in.hasNext()){
            String n =in.next();
            String r =in.next();
            BigDecimal a =new BigDecimal(n);//a是身长
            BigDecimal b = new BigDecimal(r);//b是半径
            BigDecimal c = new BigDecimal(6.28);//3.14*2
            b=b.multiply(c);//周长：b*c
            if(a.compareTo(b)>0){//若a>b 返回1
                System.out.println("No");
            }else{
                System.out.println("Yes");
            }
        }
    }
}
